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`J. LUTHER AND A. MARSH, oF WORCESTER, MASSACHUSETTS.

Lettera Patient No. 60,210, dated December 4, 1866. i

SPECIFICATION.

KNOW ALL MEN BY THESE PRESENTS: l

That-we, J. LUTHER and A. MARSH, both of the city and county `of Worcestenand Commonwealthiof Massachusetts, have invented certain new and useful improvements in Window-Blind Fastenings; and we do hereby declare that the following is a full, clear, and `exact description of the same, reference being had to the@` z l accompanying drawings, forming a part of `this specification', in which- Figure 1 represents a perspective view of a part of a blind, with our fastening applied thereto. i. Figure 2 represents a botton view ofonrblnd fastening. A Figure 3 represents a section on line A B, iig. 2.

Figure 4 represents a side view of the fasteningspring looking in the direction of the arrow, lig. 5;` and p i Figure 5 represents a,` section on lineC'Dfigs To enable those skilled in the art`to which ourV invention'belongs to malreanduse the same, we will proceed to describe it. 1 ,1p u ,p I v In the drawings, A represents the baseer main piece of the fastening, which is` fastened to the under` side of the blind by two screws, a and b. The4 parts c c of A are depressed down the width of spring C from `the back part of A, while a hub d rises up even with the baclr part of A to `support the head of lscrew a, as shown in fig. 3. A curved recess is made in the'part A, back`of the screwa, to receive the curved part e of spring C," p so that when the spring C is once placed imposition, as shown infrig. 2, and screw a'inserted as shown infgs. l 2 and 8, the spring C is securely held in place withoutV any other` fastening, vwhile the curved ends D Dof y ,p

spring C are free to work or spring back and forth on or overthe depressed parts c c, as indicated in red lines, fig.

2. The ends of the parts c c are blunt, cut or eurvedout, as seen at 1,so as to alord` a proper point of resistance" to receive the pinf and arrest the motion of the blindin the operation of opening or shutting` the same, and that,` too, without injury to the spring C. The curves g g`of spring C, in connection with lthe curved ends E E of .i part A, operate to hold the, blind, when once open or shut, until suilicient forceis applied tothe blindto throw p back the end D of spring C, as shown in red lines,'g, 2. When the device is applied to a blind, one end of the` spring answers the purpose of holding the blindopen, while theother endanswers `the purpdse of holding it when closed. The device is simple, and not lia-ble to` get ontof order. frepresents apin inflthgywindow-sill,

which is clasped between spring C dnd the end E,- as shown in blaclrp'rlines, fig. 2:". A `s t"apleii1` "siin'ie'other suitable device is to be attached to therside of thevbuilding for `a similar purpose when thelblnd is open.,l i

Having described our improved blind fastening, what we claim therein as new, and of our invention, and

desire to secure by Letters Patent, isf-Q p 1. The peculiar formation of spring-,0, as shown, and for the purposes stated.

2. Making a blind fastening of two pieces, a spring and main or bed-piece, when the latter is constructed .n

as described, so that it will receive and arrest' the blir'id when opening or closing the same, withoutinjury to the spring. n y

Y 3. The combination, with the main or bed-piece A, and spring C, of screw a, as `shown and described, whereby the screw serves to hold the spring in place, andalso answers as a fastening to theblind. i p

J. LUTHER,

A. MARSH.

Witnesses:

Tues. H. DODGE, D. L. MILLER. 

